12-Letter Words Starting: GRO

• ludicrous or incongruous unnaturalness or distortion

• a waterproofed piece of cloth spread on the ground (as under a tent) to protect from moisture

• A broad undulation of the open ocean, often as the result of a distant disturbance

• (by extension) A broadly-based shifting of public opinion

• A small political group, especially of an extremist faction.

• (geology) the matrix of fine-grained crystalline material in which larger crystals are embedded